5 files changed, 20 insertions, 29 deletions
diff --git a/phpBB/adm/style/colour_swatch.html b/phpBB/adm/style/colour_swatch.html
index 795e277949..b8620a73db 100644
--- a/phpBB/adm/style/colour_swatch.html
+++ b/phpBB/adm/style/colour_swatch.html
@@ -1,9 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}" xml:lang="{S_USER_LANG}">
+<!DOCTYPE html>
+<html dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}">
 <head>
-<meta http-equiv="Content-Type" content="text/html; charset={S_CONTENT_ENCODING}" />
-<meta http-equiv="Content-Style-Type" content="text/css" />
-<meta http-equiv="Content-Language" content="{S_USER_LANG}" />
+<meta charset="{S_CONTENT_ENCODING}">
+<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 <meta http-equiv="imagetoolbar" content="no" />
 <title>{L_COLOUR_SWATCH}</title>
 
diff --git a/phpBB/adm/style/install_header.html b/phpBB/adm/style/install_header.html
index fbb6a7b409..8d597d868c 100644
--- a/phpBB/adm/style/install_header.html
+++ b/phpBB/adm/style/install_header.html
@@ -1,10 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}" xml:lang="{S_USER_LANG}">
+<!DOCTYPE html>
+<html dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}">
 <head>
-
-<meta http-equiv="Content-Type" content="text/html; charset={S_CONTENT_ENCODING}" />
-<meta http-equiv="Content-Style-Type" content="text/css" />
-<meta http-equiv="Content-Language" content="{S_USER_LANG}" />
+<meta charset="{S_CONTENT_ENCODING}">
+<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 <meta http-equiv="imagetoolbar" content="no" />
 <!-- IF META -->{META}<!-- ENDIF -->
 <title>{PAGE_TITLE}</title>
diff --git a/phpBB/adm/style/install_update_diff.html b/phpBB/adm/style/install_update_diff.html
index 8b0708cfdb..d736fad969 100644
--- a/phpBB/adm/style/install_update_diff.html
+++ b/phpBB/adm/style/install_update_diff.html
@@ -1,10 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}" xml:lang="{S_USER_LANG}">
+<!DOCTYPE html>
+<html dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}">
 <head>
-
-<meta http-equiv="Content-Type" content="text/html; charset={S_CONTENT_ENCODING}" />
-<meta http-equiv="Content-Style-Type" content="text/css" />
-<meta http-equiv="Content-Language" content="{S_USER_LANG}" />
+<meta charset="{S_CONTENT_ENCODING}">
+<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 <meta http-equiv="imagetoolbar" content="no" />
 <!-- IF META -->{META}<!-- ENDIF -->
 <title>{PAGE_TITLE}</title>
diff --git a/phpBB/adm/style/overall_header.html b/phpBB/adm/style/overall_header.html
index a376884507..549af462fa 100644
--- a/phpBB/adm/style/overall_header.html
+++ b/phpBB/adm/style/overall_header.html
@@ -1,10 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}" xml:lang="{S_USER_LANG}">
+<!DOCTYPE html>
+<html dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}">
 <head>
-
-<meta http-equiv="Content-Type" content="text/html; charset={S_CONTENT_ENCODING}" />
-<meta http-equiv="Content-Style-Type" content="text/css" />
-<meta http-equiv="Content-Language" content="{S_USER_LANG}" />
+<meta charset="{S_CONTENT_ENCODING}">
+<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 <meta http-equiv="imagetoolbar" content="no" />
 <!-- IF META -->{META}<!-- ENDIF -->
 <title>{PAGE_TITLE}</title>
diff --git a/phpBB/adm/style/simple_header.html b/phpBB/adm/style/simple_header.html
index 2339b70a93..8b6423d7eb 100644
--- a/phpBB/adm/style/simple_header.html
+++ b/phpBB/adm/style/simple_header.html
@@ -1,10 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}" xml:lang="{S_USER_LANG}">
+<!DOCTYPE html>
+<html dir="{S_CONTENT_DIRECTION}" lang="{S_USER_LANG}">
 <head>
-
-<meta http-equiv="Content-Type" content="text/html; charset={S_CONTENT_ENCODING}" />
-<meta http-equiv="Content-Style-Type" content="text/css" />
-<meta http-equiv="Content-Language" content="{S_USER_LANG}" />
+<meta charset="{S_CONTENT_ENCODING}">
+<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
 <meta http-equiv="imagetoolbar" content="no" />
 <!-- IF META -->{META}<!-- ENDIF -->
 <title>{PAGE_TITLE}</title>